Someone who did the carphones in the 1960s (which were just radiophones) should go patent troll NTP. We have one in our museum where the entire front passenger seat was a ticker tape machine that pulled data over the radiophone. So someone drove you and you sat in the back seat and read the ticket tape, with a second phone so you could call in stock trade orders. So that's text data over a network.

First, it sounds like another stupid patent, X, but over radio. X, but over internet. X, but on the internet.

I wonder how specific the patent is to1) SMTP like email2) Cell phone transmissions

In 1992 I built for MCI/Systemhouse for the LAFD an email like system in which firemen in their trucks could send email-like messages to each other or to their base (or to a mainframe to answer a query).

It was sent via a Motorola radio system based above the Hollywood sign to Motoroloa mobile terminal (precursor the PCs now in cop cars).

We were of course, not the first, in fact, our system was modeled after the cops' radio terminals (who the firemen were jealous of).

For my purposes it would be prior art in that it was intended to send email like messages back and forth, even if it wasn't an RFC-822 based system.